[package] firewall:

[openwrt/svn-archive/archive.git] / package / firewall / files / lib / config.sh

diff --git a/package/firewall/files/lib/config.sh b/package/firewall/files/lib/config.sh
new file mode 100644 (file)
index 0000000..1c5e030
--- /dev/null
+++ b/package/firewall/files/lib/config.sh
@@ -0,0 +1,97 @@
+# Copyright (C) 2009-2010 OpenWrt.org
+# Copyright (C) 2009 Malte S. Stretz <http://msquadrat.de>
+#
+# This is a temporary file, I hope to have some of this stuff merged into
+# /lib/functions.sh (without the fw_ prefix of course) one day.
+
+fw_config_append() { # <package>
+       CONFIG_APPEND=1 config_load "$@"
+       unset CONFIG_APPEND
+}
+
+fw_config_once() { # <function> <type>
+       local func=$1
+       local type=$2
+       shift 2
+
+       local config=cfg00nil
+       fw_config__once() {
+               config=$1
+       }
+       config_foreach fw_config__once "$type"
+
+       $func $config "$@"
+}
+
+fw_config_get_section() { # <config> <prefix> <type> <name> <default> ...
+       local config=$1
+       local prefix=$2
+       shift 2
+
+       [ -n "$config" ] || return 1
+       [ -n "$prefix" ] && {
+               prefix="${prefix}_"
+               export ${NO_EXPORT:+-n} -- "${prefix}NAME"="${config}"
+               config_get "${prefix}TYPE" "$config" TYPE
+       }
+       
+       [ "$1" == '{' ] && shift
+       while [ $# -ge 3 ]; do
+               local type=$1
+               local name=$2
+               local dflt=$3
+               shift 3
+               # TODO: Move handling of defaults to /lib/functions.sh
+               # and get replace the case block with the following 
+               # two lines:
+               # type=${type#string}
+               # config_get${type:+_${type}} "${prefix}${name}" "$config" "$name" "$dflt" || return
+               case "$type" in
+                       string)
+                               local tmp
+                               config_get tmp "$config" "$name" || return
+                               [ -z "$tmp" ] && tmp=$dflt
+                               export ${NO_EXPORT:+-n} -- "${prefix}${name}=${tmp}"
+                               continue
+                       ;;
+                       boolean)
+                               type=bool
+                       ;;
+               esac;
+               
+               local cmd=${prefix}config_get_${type}
+               type $cmd > /dev/null || {
+                       cmd=config_get_${type} 
+               }
+               type $cmd > /dev/null || {
+                       echo "config type $type (for $name) not supported" >&2
+                       return 1
+               }
+               $cmd "${prefix}${name}" "$config" "$name" "$dflt" || return
+       done
+}
+
+config_get_ipaddr() {
+       local varn=$1
+       local conf=$2
+       local name=$3
+       local dflt=$4
+
+       local addr
+       config_get addr "$conf" "$name" || return
+       [ -n "$addr" ] || addr=$dflt
+
+       local mask=${addr#*/}
+       [ "$mask" != "$addr" ] || mask=
+       addr=${addr%/*}
+
+       local vers=
+       case "$addr" in
+               *.*) vers=4 ;;
+               *:*) vers=6 ;;
+       esac
+       
+       export ${NO_EXPORT:+-n} -- "${varn}=${addr}"
+       export ${NO_EXPORT:+-n} -- "${varn}_prefixlen=${mask}"
+       export ${NO_EXPORT:+-n} -- "${varn}_version=${vers}"
+}